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Journal of the American Pomological Society
(J Am Pom Soc)

American Pomological Society

Volume 56 Number 3 Article 23 Pages: 144-148
Year 2002 Month 7
Title: Wilthin Effective in Thinning Mississippi Apples
Authors: E. Ansari, F.B. Matta and L.A. Khan
'Royal Gala', 'Ultra Gold', and 'Blushing Golden' on M7A were treated two years with Wilthin (monocarbamide dihydrogensulfate) at 0 ml∙l-1, 5 ml∙l-1, 10 ml∙l-1 and 15 ml∙l-1 when trees were at 70 to 80 percent bloom. Wilthin at 5 ml∙l-1 and 15 ml∙l-1 resulted in satisfactory thinning of all cultivars. Yield was not affected as a result of thinning with Wilthin. Fruit weight and size were increased, firmness and individual sugars were increased, acidity was reduced, and juice pH was increased as a result of thinning with Wilthin.

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